Observatory · observe first
Follow the allocation change
Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.
Historical time machine
Historical observation
20182026
1 · Sector
Weight and 12M allocation change
2 · Industry
Inside Industrials
Industrial Machinery & Supplies & Components1.02%-0.25 ppConstruction Machinery & Heavy Transportation Equipment0.67%-0.20 ppHeavy Electrical Equipment0.22%+0.20 ppRail Transportation0.60%-0.18 ppElectrical Components & Equipment0.56%-0.17 ppAir Freight & Logistics0.37%-0.16 ppDiversified Support Services0.37%+0.12 ppPassenger Ground Transportation0.36%-0.08 ppTrading Companies & Distributors0.15%-0.05 ppAerospace & Defense2.38%+0.03 ppConstruction & Engineering0.12%-0.03 ppHuman Resource & Employment Services0.43%+0.02 ppResearch & Consulting Services0.17%-0.01 ppAgricultural & Farm Machinery0.30%-0.01 ppPassenger Airlines0.17%-0.01 ppIndustrial Conglomerates0.61%-0.01 ppEnvironmental & Facilities Services0.52%-0.01 ppCargo Ground Transportation0.12%-0.00 ppData Processing & Outsourced Services0.07%+0.00 ppBuilding Products0.56%-0.00 pp
3 · Sub-industry
Inside Aerospace & Defense
Aerospace & Defense · weight
2.38%
Industry change · 12M
+0.03 pp
Aerospace & Defense · contribution
+0.026 pp
Company participation
67%
of industry constituents above their 6M weight average
4 · Companies driving this sub-industry
Mar 2025 · sorted by absolute contribution to 12-month change
| Company | Country | Market cap | Universe weight | 3M contribution | 12M contribution | 12M price return | Above 6M weight average |
|---|---|---|---|---|---|---|---|
| GE Aerospace → GE | United States | $214.8bn | 0.510% | +0.101 pp | +0.087 pp | +44.1% | Yes |
| RTX Corporation → RTX | United States | $176.5bn | 0.419% | +0.070 pp | +0.060 pp | +38.8% | Yes |
| Lockheed Martin → LMT | United States | $105.1bn | 0.250% | -0.012 pp | -0.055 pp | +0.8% | No |
| Howmet Aerospace → HWM | United States | $52.5bn | 0.125% | +0.024 pp | +0.047 pp | +90.1% | Yes |
| General Dynamics → GD | United States | $73.7bn | 0.175% | +0.011 pp | -0.040 pp | -1.6% | Yes |
| Axon Enterprise → AXON | United States | $40.3bn | 0.096% | -0.007 pp | +0.030 pp | +68.1% | No |
| Northrop Grumman → NOC | United States | $74.1bn | 0.176% | +0.021 pp | -0.023 pp | +8.8% | Yes |
| Boeing → BA | United States | $127.9bn | 0.304% | +0.056 pp | -0.023 pp | -11.6% | Yes |
| Textron → TXT | United States | $13.2bn | 0.031% | -0.001 pp | -0.020 pp | -24.6% | No |
| L3Harris → LHX | United States | $39.4bn | 0.094% | +0.003 pp | -0.019 pp | +0.2% | No |
| Huntington Ingalls Industries → HII | United States | $8.0bn | 0.019% | +0.002 pp | -0.013 pp | -28.3% | Yes |
| TransDigm Group → TDG | United States | $77.6bn | 0.184% | +0.023 pp | -0.006 pp | +18.6% | Yes |
Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.